Design thinking is an exploratory, human centric approach where you follow a structure to get a solution that is closest to what a user needs.
It has five stages:
Empathize: where you understand what your user really needs
Define: where you define the problem based on your understanding
Ideate: where you think beyond the box and find all possible solutions
Prototype: A basic layout of what your solution will be
Test: here you go back to the user and understand if the solution you’ve designed would actually help them or not

Design thinking is an extensively used tool to understand the problem from the user’s perspective and not the solution maker’s